CN219673154U - Tricycle using leaf spring - Google Patents
Tricycle using leaf spring Download PDFInfo
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- CN219673154U CN219673154U CN202320331833.0U CN202320331833U CN219673154U CN 219673154 U CN219673154 U CN 219673154U CN 202320331833 U CN202320331833 U CN 202320331833U CN 219673154 U CN219673154 U CN 219673154U
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- 235000014676 Phragmites communis Nutrition 0.000 claims abstract description 62
- 230000035939 shock Effects 0.000 claims abstract description 36
- 238000010521 absorption reaction Methods 0.000 claims abstract description 22
- 238000013016 damping Methods 0.000 claims abstract description 22
- 230000005540 biological transmission Effects 0.000 claims abstract description 20
- 230000000750 progressive effect Effects 0.000 claims abstract description 19
- 239000006096 absorbing agent Substances 0.000 claims abstract description 9
- 238000005253 cladding Methods 0.000 claims description 4
- 230000003247 decreasing effect Effects 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims 8
- 239000000463 material Substances 0.000 abstract description 7
- 244000273256 Phragmites communis Species 0.000 abstract description 6
- 230000000694 effects Effects 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 8
- 238000010030 laminating Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
- F16F1/26—Attachments or mountings
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60G—VEHICLE SUSPENSION ARRANGEMENTS
- B60G11/00—Resilient suspensions characterised by arrangement, location or kind of springs
- B60G11/02—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only
- B60G11/10—Resilient suspensions characterised by arrangement, location or kind of springs having leaf springs only characterised by means specially adapted for attaching the spring to axle or sprung part of the vehicle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K25/00—Axle suspensions
- B62K25/04—Axle suspensions for mounting axles resiliently on cycle frame or fork
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62K—CYCLES; CYCLE FRAMES; CYCLE STEERING DEVICES; RIDER-OPERATED TERMINAL CONTROLS SPECIALLY ADAPTED FOR CYCLES; CYCLE AXLE SUSPENSIONS; CYCLE SIDE-CARS, FORECARS, OR THE LIKE
- B62K5/00—Cycles with handlebars, equipped with three or more main road wheels
- B62K5/02—Tricycles
- B62K5/027—Motorcycles with three wheels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F1/00—Springs
- F16F1/02—Springs made of steel or other material having low internal friction; Wound, torsion, leaf, cup, ring or the like springs, the material of the spring not being relevant
- F16F1/18—Leaf springs
- F16F1/185—Leaf springs characterised by shape or design of individual leaves
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Vehicle Body Suspensions (AREA)
- Springs (AREA)
Abstract
The utility model discloses a tricycle adopting a leaf spring, wherein the tricycle adopts the leaf spring as a shock absorber, the leaf spring comprises a main spring body formed by superposing a plurality of main reeds and an auxiliary spring body formed by superposing a plurality of auxiliary reeds, two ends of the main spring body form a connecting part connected with a frame and form a main spring body shock absorption structure when in use, and the auxiliary spring body is positioned above the main spring body and participates in shock absorption when the main spring body is subjected to shock absorption deformation to a set position, so that a progressive shock absorption structure is formed. The main spring body and the auxiliary spring body are combined to form a progressive two-stage stress structure, so that the damping stress is more uniform, a better damping force transmission path is achieved, the damping requirements of a carriage under two conditions of heavy load and light load are met, meanwhile, the material consumption of the leaf spring is reduced, the cost is saved, and the requirements of light weight and low cost of a light freight vehicle are met.
Description
Technical Field
The utility model relates to the technical field of automobile shock absorbers, in particular to a tricycle adopting a leaf spring.
Background
The leaf spring is the most widely used elastic element in the automobile (especially the freight car) suspension, and is an elastic beam with approximate equal strength formed by combining a plurality of alloy spring pieces with equal width but unequal length (the thickness can be equal or unequal).
When the leaf spring is installed in the automobile suspension and the vertical load is positive, each spring piece is stressed to deform and tends to arch upwards. At this time, the axle and the frame are brought close to each other. When the axle and frame are moved away from each other, the normal vertical load and deformation to which the leaf spring is subjected is gradually reduced, sometimes even reversed.
The leaf springs in the prior art can increase the strength of the leaf springs by increasing the number of leaf springs, each leaf of the leaf springs is overlapped into an inverted triangle shape, the uppermost leaf is longest, the lowermost leaf is shortest, the number of leaf of the leaf springs is related to the weight of a supporting passenger car, and the thicker and shorter the leaf springs are, the greater the spring rigidity is. However, when the leaf spring is used for a long time, the pieces slide against each other to generate noise. The relative friction between the steel plates can also cause the deformation of the springs, so that the running is unsmooth, and the service life of the steel plate springs is shortened.
Therefore, in order to solve the above problems, a new leaf spring configuration is needed, the main spring body and the auxiliary spring body are combined to form a progressive two-stage stress structure, the shock absorption requirements of a carriage under two conditions of heavy load and light load are met, meanwhile, the material consumption of the leaf spring is reduced, the cost is saved, the light weight and low cost requirements of a light freight vehicle are met, and the weak coiled lugs of the leaf spring are matched with the leaf spring after strength reinforcement, so that the wear resistance is improved, and the service life of the leaf spring is prolonged.
Disclosure of Invention
In view of the above, the utility model aims to overcome the defects in the prior art, provide a leaf spring, and combine a main spring body and an auxiliary spring body to form a progressive two-stage stress structure, so that the damping stress is more uniform, a better damping force transmission path is achieved, the damping requirements of a carriage under two conditions of heavy load and light load are met, meanwhile, the material consumption of the leaf spring is reduced, the cost is saved, the requirements of light weight and low cost of a light freight vehicle are met, the coil lug at the weak part of the leaf spring is matched with the strength of the leaf spring after the strength is enhanced, the wear resistance is increased, and the service life of the leaf spring is prolonged.
The tricycle adopts the leaf spring as the shock absorber, comprises a main spring body formed by superposing a plurality of main reeds and an auxiliary spring body formed by superposing a plurality of auxiliary reeds, wherein two ends of the main spring body (namely two ends along the length direction of the main spring body) form connecting parts connected with a frame and form a main spring body shock absorption structure when in use, the auxiliary spring body is positioned above the main spring body, and participates in shock absorption when the main spring body is subjected to shock absorption deformation to a set position (the set position is determined by the lengths, radians and elastic coefficients of the main spring body and the auxiliary spring body), so that a progressive shock absorption structure is formed, the main spring body serves as a shock absorber mainly subjected to force, when a carriage bears a large load, the deformation of the main spring body is increased, the carriage descends so that the auxiliary spring body also participates in the shock absorption force, the shock absorber is subjected to two-stage superposition, and when the carriage force is lighter, the auxiliary spring body does not participate in the shock absorption force, the shock absorber material is saved to the maximum extent, and the light weight and low cost requirements of the shock absorber are met.
Further, the auxiliary spring body middle part is laminated with the main spring body, and both ends upwards gradually keep away from the main spring body and form progressive shock-absorbing structure, and two-stage shock-absorbing structure atress is more even, is in the same place in the position main spring body coincide near leaf spring middle part with the auxiliary spring body, reaches the stack of stress point and guarantees the atress balance.
Further, the main reed of the main reed body forms an upper reed group and a lower reed group, the two ends of the upper reed group form the connecting part, the middle part of the lower reed group is attached to the upper reed group, the two ends of the lower reed group are gradually downwards far away from the upper reed group to form a main reed body progressive shock absorption structure, the length of the upper reed group is longer than that of the lower reed group, and the main reed body is guaranteed to have good elastic coefficient to achieve good shock absorption effect.
Further, a plurality of vice reed coincide and length increase gradually in the direction of keeping away from the main spring body (adjacent vice reed from the top down length decreases gradually, can make the vice spring body have suitable elasticity coefficient, satisfies tricycle shock attenuation demand), upwarp simultaneously forms progressive shock-absorbing structure.
Further, the connecting part is a coil lug, two ends of the auxiliary spring body form contact planes, the contact planes are contacted with the frame upwards and participate in shock absorption when the main spring body is in shock absorption deformation to a set position (the set position is determined by the length, radian and elastic coefficient of the main spring body and the auxiliary spring body), the contact planes are used for supporting the carriage and providing secondary supporting force for the carriage when the carriage bears larger downward pressure, the contact planes arranged on the auxiliary spring body can ensure the separation of the carriage from the contact planes when the carriage is under light load and the rapid engagement of the carriage under heavy load, so that the auxiliary spring body can rapidly enter the secondary shock absorption bearing of the spring body, the downward pressure is shared for the main spring body, the shock absorption effect of the whole shock absorber is ensured, the combination of the main spring body and the auxiliary spring body achieves the progressive stress shock absorption effect, the utilization efficiency of each reed is improved, the life of steel leaf spring has been increased, when the carriage is in the no-load, the auxiliary spring body does not participate in the bearing, when the bearing of carriage reaches certain degree, the carriage sinks, the position of reeled ear also moves down along with it, first auxiliary spring also participates in the bearing of main spring through the power transmission of biography power subassembly, if resume loading the carriage, carriage position continues to move down, then carriage bottom and the contact plane direct contact of first auxiliary spring, first auxiliary spring also can play the bearing effect to the carriage this moment, and first auxiliary spring accessible biography power subassembly and square hoop are with bearing capacity to main spring or the dispersion of second auxiliary spring, make each reed atress balanced, the square hoop still can guarantee the good synchronous displacement between two reeds of its connection well simultaneously, avoid taking place too much friction. The coiled lug is used as a mounting foundation for assembling and positioning the leaf spring and the carriage, so that the connection with the carriage positioning and assembling can be ensured, meanwhile, the structure is simple, the manufacturing is simple, the cost is low, and the coiled lug is applied to a tricycle, and can meet the use strength and also consider the economical efficiency.
Further, the auxiliary spring body comprises a first auxiliary spring, a second auxiliary spring and a third auxiliary spring, the lengths of the first auxiliary spring, the second auxiliary spring and the third auxiliary spring are sequentially decreased from top to bottom, the main spring body comprises an upper reed group formed by the first main spring and the second main spring and a lower reed group formed by the third main spring and the fourth main spring, the coiled lug comprises a front coiled lug and a rear coiled lug, the front coiled lug is formed by curling the front end of the first main spring, the rear coiled lug is formed by curling the rear end of the first main spring, and the rear end of the second main spring is incompletely coated and attached to the outer side of the rear coiled lug.
Further, the locking hole is offered at the auxiliary spring body and the main spring body middle part and will through interior bolt the auxiliary spring body with the main spring body locking stack is in the same place, and the reed is in the same place through interior bolt is whole to be overlapped, has increased the wholeness of the spring body, and the spring body is also in the intermediate position of the spring body with the junction part of axle simultaneously, and the spring body middle part of connecting together can greatly guarantee the intensity of the spring body intermediate position, guarantees that the spring body can bear the load on great vertical direction, and economy is suitable for, has guaranteed under the prerequisite that does not increase spring body volume and quality that the spring body possess strongest load bearing strength.
Furthermore, the first main spring and the second main spring are respectively and fixedly connected through square hoops at the positions close to the two ends of the rolling lugs, the first auxiliary spring and the second auxiliary spring are fixedly connected through square hoops at the positions close to the front rolling lugs, the first auxiliary spring and the third main spring are limited at the positions close to the rear rolling lugs through a force transmission component, the first main spring and the second main spring with approximately equal lengths are tightly locked together (namely, the upper reed group) through the two square hoops and the inner bolts at the center to optimize the stress condition of the first main spring and the second main spring, the condition of stress concentration is avoided, the integrity of the first main spring and the second main spring is increased, the first main spring end head and the second main spring end head are connected, excessive friction between the first main spring and the second main spring is also avoided, a bushing is also arranged in the rolling lugs, the support lugs are arranged on the carriage and are in running fit with the coiled lugs on the leaf springs, the friction between the support lugs and the coiled lugs is effectively avoided due to the arrangement of the bushings, the service life of the leaf springs is effectively ensured, meanwhile, the arranged bushings are convenient to maintain and replace, the use cost of a vehicle can be effectively reduced, the force transmission assembly has the effect that when the carriage is rapidly converted to a light load from the heavy load, the auxiliary springs are rapidly separated from the force to rebound, the force transmission assembly can effectively limit the rebound stroke of the auxiliary springs at the moment, the rebound stroke of the rear ends of the auxiliary springs is avoided to be overlarge, the force transmission assembly is arranged at the rear ends of the leaf springs because the change of the stress condition of the rear ends of the leaf springs is larger, the condition that the rebound stroke of the auxiliary springs is overlarge is avoided due to the arrangement of the force transmission assembly at the rear ends of the leaf springs, the front ends of the auxiliary springs are still fastened and connected with the first auxiliary springs and the second auxiliary springs by adopting square hoops, the overall structural property of the auxiliary spring body is guaranteed so as to optimize the stress condition of the first auxiliary spring and the second auxiliary spring.
Further, pass power subassembly includes strap, stop bolt and nut, the strap cladding is in the outside of third main spring, second main spring, first main spring and first auxiliary spring, the strap is concave laminating set up the connecting hole on the position of third main spring bottom surface, the nut passes through the connecting hole is with strap and third main spring fixed connection, the spacing hole is seted up at the both ends of strap in the stop bolt wears to locate two spacing holes, the stop bolt outside sets up the sleeve pipe, the sleeve pipe is located between the strap both ends, pass power subassembly's setting has guaranteed the stroke of auxiliary spring body, has also improved the connection and the overall structure nature between main spring body and the auxiliary spring body to a certain extent, and the setting of pass power subassembly can guarantee the wholeness and the relative independence between auxiliary spring body well, makes the two-stage of the formation of main spring body and auxiliary spring body atress, prolongs the life of the strap, and the sleeve pipe setting up can have the fixed distance and the strap side to take place, avoids the friction between the strap both sides.
The beneficial effects of the utility model are as follows: according to the tricycle adopting the leaf spring, the main spring body and the auxiliary spring body are combined to form a progressive two-stage stress structure, the damping stress is more uniform, a better damping force transmission path is achieved, the damping requirements of a carriage under two conditions of heavy load and light load are met, meanwhile, the material consumption of the leaf spring is reduced, the cost is saved, the light weight and low cost requirements of a light freight vehicle are met, the strength of the coil lug at the weak part of the leaf spring is matched with that of the leaf spring after the strength is enhanced, the wear resistance is improved, and the service life of the leaf spring is prolonged.
Drawings
The utility model is further described below with reference to the accompanying drawings and examples:
FIG. 1 is a schematic diagram of an axial structure of the present utility model;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
FIG. 4 is a schematic cross-sectional view of the structure at A-A in FIG. 2;
fig. 5 is a schematic view of the overall structure of the tricycle of the present utility model.
Detailed Description
Fig. 1 is a schematic diagram of an axle measurement structure of the present utility model, fig. 2 is a front view of fig. 1, fig. 3 is a top view of fig. 1, fig. 4 is a schematic diagram of a cross-section structure at A-A in fig. 2, fig. 5 is a schematic diagram of an overall structure of a tricycle of the present utility model, as shown in the drawing, the tricycle adopts a leaf spring as a damper, the tricycle adopts a leaf spring as a main spring body formed by stacking a plurality of main leaves and a sub-spring body formed by stacking a plurality of sub-leaves, two ends of the main spring body (i.e., two ends along a length direction of the main spring body) form a connecting portion connected with a frame and form a main spring body damping structure when in use, the sub-spring body is located above the main spring body and participates in damping deformation to a set position (the set position is determined by a length, an arc and an elastic coefficient of the main spring body) of the main spring body, the main spring body is used as a damper of a main stress, when the main spring body is subjected to a larger load, a deformation of the main spring body is larger, the sub-spring body is also involved in a carriage, and the sub-spring body is also involved in the carriage, the damper is light in the load, and the two-stage damper is not stressed, and the two-stage damper is required, and the damping material is reduced, and the damping is achieved.
In this embodiment, vice spring body middle part and the laminating of main spring body, both ends upwards keep away from the main spring body gradually and form progressive shock-absorbing structure, two-stage formula shock-absorbing structure atress is more even, is in the same place in the position main spring body coincide near leaf spring middle part with vice spring body, reaches the stack assurance stress balance of stress point.
In this embodiment, the main reed of the main spring body forms upper portion reed group and lower part reed group, the both ends of upper portion reed group form connecting portion, lower part reed group middle part and upper portion reed group laminating, upper portion reed group formation main spring body progressive damping structure is kept away from down gradually at both ends, and the length of upper portion reed group is longer than lower part reed group, guarantees that the main spring body has good elasticity coefficient and reaches good shock attenuation effect.
In this embodiment, a plurality of vice reed coincide and length increase gradually in the direction of keeping away from the main spring body (adjacent vice reed from the top down length decreases gradually, can make the vice spring body have suitable elasticity coefficient, satisfies tricycle shock attenuation demand), upwarp simultaneously forms progressive shock-absorbing structure.
In this embodiment, the connection portion is a coiled lug, two ends of the auxiliary spring body form a contact plane 1a, the contact plane 1a contacts with the frame upwards and participates in damping when the main spring body is deformed to a set position (the set position is determined by the length, radian and elastic coefficient of the main spring body and the auxiliary spring body), the contact plane 1a is used for supporting the carriage and providing a secondary supporting force for the carriage when the carriage bears a large downward pressure, the contact plane 1a arranged on the auxiliary spring body can ensure that the carriage is separated from the contact plane 1a when the carriage is under a light load and the auxiliary spring body can quickly enter into the secondary damping bearing of the spring body when the carriage is under a heavy load, the downward pressure is shared by the main spring body, the damping effect of the integral damper is ensured, the combination of the main spring body and the auxiliary spring body achieves the progressive stressed damping effect, the utilization efficiency of each reed is improved, the life of steel leaf spring has been increased, when the carriage is in the no load, the auxiliary spring body does not participate in the bearing, when the bearing of carriage reaches certain degree, the carriage sinks, the position of reeled ear also moves down along with it, first auxiliary spring 1 also participates in the bearing of main spring through the power transmission of biography power subassembly, if resume carrying out loading to the carriage, carriage position continues down, then carriage bottom and the contact plane direct contact of first auxiliary spring 1, first auxiliary spring 1 also can play the bearing effect to the carriage this moment, and first auxiliary spring 1 accessible biography power subassembly and square hoop 11 are with the bearing capacity to main spring or second auxiliary spring 2 dispersion, make each reed atress balanced, simultaneously square hoop 11 still can guarantee the good synchronous displacement between its two connected reeds well, avoid taking place too much friction. The coiled lug is used as a mounting foundation for assembling and positioning the leaf spring and the carriage, so that the connection with the carriage positioning and assembling can be ensured, meanwhile, the structure is simple, the manufacturing is simple, the cost is low, and the coiled lug is applied to a tricycle, and can meet the use strength and also consider the economical efficiency.
In this embodiment, the auxiliary spring body includes first auxiliary spring 1, second auxiliary spring 2 and third auxiliary spring 3 that from the top down length is progressively decreased in proper order, the main spring body includes the upper portion reed group that forms by first main spring 4 and second main spring 5 and the lower part reed group that forms by third main spring 6 and fourth main spring 7, the reel includes preceding reel 8 and back reel 9, preceding reel 8 is curled by the front end of first main spring 4 and is formed, back reel 9 is curled by the rear end of first main spring 4 and the rear end of second main spring 5 is incomplete cladding laminating in the back reel 9 outside.
In this embodiment, the locking hole is offered at the auxiliary spring body and the main spring body middle part and will be in the same place with main spring body locking stack through interior bolt 10, and the reed is in the same place through whole stack of interior bolt 10, has increased the wholeness of the spring body, and the spring body is also in the intermediate position of the spring body with the junction point of axle simultaneously, and the intensity of spring body intermediate position can be greatly guaranteed in the spring body middle part that links together, guarantees that the spring body can bear the load on great vertical direction, and economy is suitable, has guaranteed that the spring body possesses strongest load bearing strength under the prerequisite that does not increase spring body volume and quality.
In this embodiment, the first main spring 4 and the second main spring 5 are fixedly connected by square hoops 11 at positions close to two ends of the rolling lug respectively, the first auxiliary spring 1 and the second auxiliary spring 2 are fixedly connected by square hoops 11 at positions close to the front rolling lug 8, the first auxiliary spring 1 and the third main spring 6 are limited by a force transmission component at positions close to the rear rolling lug 9, the first main spring 4 and the second main spring 5 with approximately equal lengths are tightly locked together (i.e. the upper reed group) through two square hoops 11 and an inner bolt 10 at the center, the stress condition of the first main spring 4 and the second main spring 5 is optimized, the condition of stress concentration is avoided, the integrity of the first main spring 4 and the second main spring 5 is increased, the ends of the first main spring 4 and the second main spring 5 are connected, excessive friction between the first main spring 4 and the second main spring 5 can be avoided, a bushing 12 is also arranged in the rolling lug, the support lugs are arranged on the carriage and are in running fit with the coiled lugs on the leaf springs, the friction between the support lugs and the coiled lugs is effectively avoided by the arrangement of the bushings 12, the service life of the leaf springs is effectively ensured, meanwhile, the arranged bushings 12 are convenient to maintain and replace, the use cost of a vehicle can be effectively reduced, the force transmission assembly has the effect that when the carriage is rapidly converted to a light load from the heavy load, the auxiliary springs can be rapidly separated from the force to rebound, the force transmission assembly can effectively limit the rebound stroke of the auxiliary spring body at the moment, the rebound stroke of the rear end of the auxiliary spring body is avoided to be overlarge, the force transmission assembly is arranged at the rear end of the leaf springs to avoid the overlarge rebound stroke of the auxiliary spring body during rebound because the change of the rear end of the leaf springs, the front end of the auxiliary spring body is still fixedly connected with the first auxiliary spring 1 and the second auxiliary spring 2 by adopting the square hoop 11, the overall structural property of the auxiliary spring body is ensured to optimize the stress condition of the first auxiliary spring 1 and the second auxiliary spring 2.
In this embodiment, the power transmission subassembly includes strap 13a, spacing bolt 13b and nut 13c, strap 13a cladding is in the outside of third main spring 6, second main spring 5, first main spring 4 and first auxiliary spring 1, strap 13a is the concave laminating set up the connecting hole on the position of third main spring 6 bottom surface, nut 13c passes through the connecting hole with strap 13a and third main spring 6 fixed connection, spacing hole is seted up at strap 13 a's both ends spacing bolt 13b wears to locate in two spacing holes, spacing bolt 13b outside sets up sleeve pipe 13d, sleeve pipe 13d is located between strap 13a both ends, the setting up of power transmission subassembly has guaranteed the stroke of auxiliary spring body, has also improved the connection and the overall structure nature between main spring body and the auxiliary spring body to a certain extent, power transmission subassembly's setting up can guarantee that main spring body and auxiliary spring body are mutually independent and the opposite each other can form the life-span of two-span length of sleeve pipe 13a, and the opposite side that the strap 13a is guaranteed to have the opposite side to take place, and the opposite side of the two-stage spring body is guaranteed to be stressed, and vice body is guaranteed to have the opposite side to be set up.
According to the tricycle adopting the leaf spring, the main spring body and the auxiliary spring body are combined to form a progressive two-stage stress structure, the damping stress is more uniform, a better damping force transmission path is achieved, the damping requirements of a carriage under two conditions of heavy load and light load are met, meanwhile, the material consumption of the leaf spring is reduced, the cost is saved, the light weight and low cost requirements of a light freight vehicle are met, the strength of the coil lug at the weak part of the leaf spring is matched with that of the leaf spring after the strength is enhanced, the wear resistance is improved, and the service life of the leaf spring is prolonged.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (9)
1. A tricycle adopting a leaf spring is characterized in that: the tricycle adopts leaf spring as the bumper shock absorber, leaf spring includes the main spring body that is overlapped by the main reed of multi-disc and the vice spring body that is overlapped by the vice reed of multi-disc and form, main spring body both ends form the connecting portion of being connected with the frame and form main spring body shock-absorbing structure when using, vice spring body is located main spring body top to participate in the shock attenuation when main spring body shock attenuation warp to the settlement position, form progressive shock-absorbing structure.
2. The tricycle using leaf springs according to claim 1, wherein: the middle part of the auxiliary spring body is attached to the main spring body, and two ends of the auxiliary spring body are gradually far away from the main spring body upwards to form the progressive damping structure.
3. The tricycle using leaf springs according to claim 1, wherein: the main reed of the main reed body forms an upper reed group and a lower reed group, the two ends of the upper reed group form the connecting part, the middle part of the lower reed group is attached to the upper reed group, and the two ends of the lower reed group are gradually far away from the upper reed group downwards to form a main reed body progressive shock absorption structure.
4. The tricycle using leaf springs according to claim 1, wherein: the auxiliary reed pieces are overlapped in the direction away from the main reed body, the lengths of the auxiliary reed pieces are sequentially increased, and meanwhile, the auxiliary reed pieces are upwards tilted to form the progressive shock absorption structure.
5. The tricycle with leaf springs of claim 3 wherein: the connecting part is a coiled lug, contact planes are formed at two ends of the auxiliary spring body, and the contact planes are contacted with the frame upwards and participate in shock absorption when the main spring body is deformed to a set position in a shock absorption mode.
6. The tricycle with leaf springs of claim 5 wherein: the auxiliary spring body comprises a first auxiliary spring, a second auxiliary spring and a third auxiliary spring, the lengths of the first auxiliary spring, the second auxiliary spring and the third auxiliary spring are sequentially decreased from top to bottom, the main spring body comprises an upper reed group formed by the first main spring and the second main spring and a lower reed group formed by the third main spring and the fourth main spring, the front winding lug comprises a front winding lug and a rear winding lug, the front winding lug is formed by the front end of the first main spring in a winding mode, the rear winding lug is formed by the rear end of the first main spring in a winding mode, and the rear end of the second main spring is in an incomplete cladding mode and is attached to the outer side of the rear winding lug.
7. The tricycle using leaf springs according to claim 1, wherein: the middle parts of the auxiliary spring body and the main spring body are provided with locking holes, and the auxiliary spring body and the main spring body are locked and overlapped together through an inner bolt.
8. The tricycle with leaf springs of claim 6 wherein: the first main spring and the second main spring are fixedly connected through square hoops at positions close to the lugs at two ends respectively, the first auxiliary spring and the second auxiliary spring are fixedly connected through square hoops at positions close to the front lugs, and the first auxiliary spring and the third main spring are limited through a force transmission assembly at positions close to the rear lugs.
9. The tricycle with leaf springs of claim 8 wherein: the power transmission assembly comprises a hoop, a limit bolt and a nut, wherein the hoop is coated on the outer sides of a third main spring, a second main spring, a first main spring and a first auxiliary spring, the hoop is concave and is attached to the bottom surface of the third main spring, a connecting hole is formed in the position of the bottom surface of the third main spring, the nut is fixedly connected with the hoop and the third main spring through the connecting hole, the two ends of the hoop are provided with limit holes, the limit bolt penetrates through the two limit holes, and a sleeve is arranged on the outer side of the limit bolt and is positioned between the two ends of the hoop.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210191323.8A CN114396445A (en) | 2022-02-28 | 2022-02-28 | Steel plate spring and tricycle |
| CN2022101913238 | 2022-02-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219673154U true CN219673154U (en) | 2023-09-12 |
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ID=81234508
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210191323.8A Withdrawn CN114396445A (en) | 2022-02-28 | 2022-02-28 | Steel plate spring and tricycle |
| CN202320331833.0U Active CN219673154U (en) | 2022-02-28 | 2023-02-27 | Tricycle using leaf spring |
| CN202310173573.3A Pending CN116146631A (en) | 2022-02-28 | 2023-02-27 | Leaf spring and tricycle |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210191323.8A Withdrawn CN114396445A (en) | 2022-02-28 | 2022-02-28 | Steel plate spring and tricycle |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310173573.3A Pending CN116146631A (en) | 2022-02-28 | 2023-02-27 | Leaf spring and tricycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN114396445A (en) |
-
2022
- 2022-02-28 CN CN202210191323.8A patent/CN114396445A/en not_active Withdrawn
-
2023
- 2023-02-27 CN CN202320331833.0U patent/CN219673154U/en active Active
- 2023-02-27 CN CN202310173573.3A patent/CN116146631A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| CN116146631A (en) | 2023-05-23 |
| CN114396445A (en) | 2022-04-26 |
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